/*
 * Copyright 2006 Matt Jensen
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package org.spectaql.jpa;

import org.spectaql.metadata.PersistenceMetadata;

/**
 * <p>
 * <code>JpaProviderAdapter</code> defines the public interface to a JPA provider adapter. Implementors of this
 * interface handle tasks which require direct interaction with the underlying persistence provider.
 * </p>
 */
public interface JpaProviderAdapter
{
    /**
     * <p>
     * Get persistence metadata from a given entity manager factory. Will involve interrogation of the underlying
     * persistence provider delegate.
     * </p>
     *
     * @param delegate the entity manager delegate object.
     * @return {@link PersistenceMetadata} instance.
     */
    PersistenceMetadata getPersistenceMetadata(Object delegate);
}
